Zobrazeno 1 - 10
of 38
pro vyhledávání: '"T. Niewierowicz"'
Autor:
T. Niewierowicz, Leszek Kawecki
Publikováno v:
IEEE Latin America Transactions. 12:176-181
A two point boundary value problem occurs during the process of solving a single or set of differential equations whose solution has to satisfy both initial and final boundary conditions. To solve numerically a nonlinear two point boundary value prob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3900644753ef6803d30c74dbc328cdec
https://doi.org/10.1109/tla.2014.6749535
https://doi.org/10.1109/tla.2014.6749535
Publikováno v:
IEEE Latin America Transactions. 9:747-752
The work presents a method for determining electric and magnetic losses generated within rotary electric machines with the application of neural networks. The proposed neural network allows determination of the intensities of the internal sources of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72eb5ab3ab6beb2b4a1050ff21716f32
https://doi.org/10.1109/tla.2011.6030985
https://doi.org/10.1109/tla.2011.6030985
Autor:
T. Niewierowicz, Juan Fernández-Vargas
Publikováno v:
International Journal of Electrical Power & Energy Systems. 29:36-41
Energy functions were developed for assessment of stability of multimachine power systems. This paper develops a switching control strategy for suppression of oscillations of power systems. This strategy is based on energy function using shunt and se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::113cb23bd7e3700d5e33c2077d647450
https://doi.org/10.1016/j.ijepes.2006.03.017
https://doi.org/10.1016/j.ijepes.2006.03.017
Autor:
T. Niewierowicz, Juan Fernández-Vargas
Publikováno v:
Electric Power Systems Research. 76:476-484
The control of power systems on the basis of energy analysis offers many advantages. An essential condition to achieve this control is the measurement of the angles of the major generator groups, which are available using satellite Global Positioning
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51cc572d180a031e25888e5863b1a925
https://doi.org/10.1016/j.epsr.2005.09.007
https://doi.org/10.1016/j.epsr.2005.09.007
Publikováno v:
Electric Power Systems Research. 72:1-11
This paper shows the variation of the fundamental parameters of synchronous machine two-axis equivalent circuits due to magnetic saturation. The different magnetic states of the machine are obtained using finite-element magnetostatic solutions. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c412d7efe1de4abf0ce855e5b7847a5
https://doi.org/10.1016/j.epsr.2004.03.001
https://doi.org/10.1016/j.epsr.2004.03.001
Publikováno v:
Computers & Electrical Engineering. 29:505-522
A hybrid genetic algorithm is used to find high-order equivalent circuits (ECs) of synchronous machines using standstill frequency response (SSFR) data. The algorithm performs satisfactorily despite the great deal of local minima surrounding the opti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::633b149b05d68eee4d195f5328332f6c
https://doi.org/10.1016/s0045-7906(01)00046-5
https://doi.org/10.1016/s0045-7906(01)00046-5
Publikováno v:
IEEE Transactions on Magnetics. 38:1245-1248
An efficient two-dimensional finite-element (FE) model is developed for the calculation of synchronous machine transfer functions. The numerical model uses two equivalent sinusoidally distributed stator windings substituting the actual three-phase ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e288370cfd7d2274754e2241b0e48d8
https://doi.org/10.1109/20.996318
https://doi.org/10.1109/20.996318
Publikováno v:
Universidad Autónoma Metropolitana
UAM
Redalyc-UAM
Instituto Politécnico Nacional
IPN
Redalyc-IPN
Ingeniería. Investigación y Tecnología (México) Num.1 Vol.XI
UAM
Redalyc-UAM
Instituto Politécnico Nacional
IPN
Redalyc-IPN
Ingeniería. Investigación y Tecnología (México) Num.1 Vol.XI
"En este trabajo se presentan los resultados del análisis de sensibilidad paramétrica realizado a modelos de circuitos equivalentes de orden superior de un turbogenerador (150 MVA, 120 MW, 13.8 kV y 50 Hz). La representación del generador síncron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12cee157f4cd8647caa924a29885e725
http://www.redalyc.org/articulo.oa?id=40415986010
http://www.redalyc.org/articulo.oa?id=40415986010
Publikováno v:
2007 4th International Conference on Electrical and Electronics Engineering.
Optimization is employed in this work to obtain the two-axis parameters of a typical solid-rotor synchronous machine. SSFR data is used to set-up the identification problem, leading to a fitness function that must be minimized. However, the function
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e62e426281fe05feeedb3d32658b87d
https://doi.org/10.1109/iceee.2007.4345013
https://doi.org/10.1109/iceee.2007.4345013
Publikováno v:
2006 3rd International Conference on Electrical and Electronics Engineering.
In this work, the impact of noise in the parametric identification of synchronous machine two-axis equivalent circuits using SSFR data is analyzed. Equivalent circuits of one and three damper branches are used to model the synchronous machine. Noise
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7415c61938be342a3ac5ddbba7f69ba
https://doi.org/10.1109/iceee.2006.251852
https://doi.org/10.1109/iceee.2006.251852